Shore Flies

Figures 162–165.Hydrochasma edmistoni sp. n. (Dominican Republic. La Vega: La Vega) 162 epandrium and cerci, posterior view 163 same, lateral view 164 internal structures of male terminalia (aedeagus [shaded], phallapodeme, gonite, hypandrium), ventral view 165 same, lateral view. Scale bar = 0.1 mm.

Figure 166.Distribution map of Hydrochasma edmistoni sp. n.

Figures 167–170.Hydrochasma garvinorum Mathis & Zatwarnicki (USA. Virginia. Stafford: Falmouth, Rappahannock River) 167 epandrium and cerci, posterior view 168 same, lateral view 169 internal structures of male terminalia (aedeagus [shaded], phallapodeme, gonite, hypandrium), ventral view 170 same, lateral view. Scale bar = 0.1 mm.

Figure 171.Distribution of Hydrochasma garvinorum Mathis and Zatwarnicki.

Figures 172–174.Hydrochasma leucoproctum (Loew) (St. Vincent. St. Patrick: Cumberland Bay) 172 head, anterior view 173 same, lateral view 174 same, oblique view. Scale bar = 0.1 mm.

Figures 175–178.Hydrochasma leucoproctum (Loew) (St. Vincent. St. Patrick: Cumberland Bay) 175 epandrium and cerci, posterior view 176 same, lateral view 177 internal structures of male terminalia (aedeagus [shaded], phallapodeme, gonite, hypandrium), ventral view 178 same, lateral view. Scale bar = 0.1 mm.

Figure 179.Distribution of Hydrochasma leucoproctum (Loew).

Figures 184–185.Abdomens of males, dorsal view. 184 Hydrochasma capsum sp. n. (Cuba. Sancti Spiritus: Topes de Collantes) 185 Hydrochasma leucoproctum (Loew) (St. Vincent: Cumberland Bay). Scale bar = 0.1 mm.

Figure 100.Distribution of Hydrochasma kaieteur sp. n. and Hydrochasma lineatum sp. n.

Figures 180–183.Hydrochasma lineatum sp. n. (Trinidad. St. George: Filette) 180 epandrium and cerci, posterior view 181 same, lateral view 182 internal structures of male terminalia (aedeagus [shaded], phallapodeme, gonite, hypandrium), ventral view 183 same, lateral view. Scale bar = 0.1 mm.

Figures 186–189.Hydrochasma robustum sp. n. (Brazil. Sao Paulo: Praia Puruba) 186 epandrium and cerci, posterior view 187 same, lateral view 188 internal structures of male terminalia (aedeagus [shaded], phallapodeme, gonite, hypandrium), ventral view 189 same, lateral view. Scale bar = 0.1 mm.

Figure 190.Distribution of Hydrochasma robustum sp. n.

Figures 191–194.Hydrochasma sagittarium sp. n. (Brazil. Paraná: Morretes) 191 epandrium and cerci, posterior view 192 same, lateral view 193 internal structures of male terminalia (aedeagus [shaded], phallapodeme, gonite, hypandrium), ventral view 194 same, lateral view. Scale bar = 0.1 mm.

Figure 195.Distribution of Hydrochasma sagittarium sp. n.

Figures 196–198.Discocerina buccata (Cresson) (USA. Minnesota: Bigstone) 196 epandrium and cerci, posterior view 197 internal structures of male terminalia (aedeagus [shaded], phallapodeme, gonite, hypandrium), ventral view 198 same, lateral view. Scale bar = 0.1 mm.

Figure 199.Distribution of Discocerina buccata (Cresson).

Figures 200–203.Discocerina ceraceps (Cresson) (Brazil, holotype) 200 outline of epandrium and cerci, posterior view 201 same, lateral view 202 internal structures of male terminalia (aedeagus [shaded], phallapodeme, gonite, hypandrium), ventral view 203 same, lateral view. Scale bar = 0.1 mm.

Figure 6.Distribution of Hydrochasma castilloi sp. n. and Hydrochasma crenulum sp. n.

Figures 7–10.Hydrochasma crenulum sp. n. (Peru. Cuzco: Paucartambo, Atalaya) 7 epandrium and cerci, posterior view 8 same, lateral view 9 internal structures of male terminalia (aedeagus [shaded], phallapodeme, gonite, hypandrium), ventral view 10 same, lateral view. Scale bar = 0.1 mm.

Figures 11–12.11 Hydrochasma williamsae sp. n. (USA. New Mexico. Grant: Mimbres River) hindtibia and hindtarsus, posterior view 12 Hydrochasma digitatum sp. n. (Peru. Madre de Dios: Río Manu, Erika), abdomen of male, dorsal view. Scale bar = 0.1 mm.

Figures 13–16.Hydrochasma digitatum sp. n. (Peru. Madre de Dios: Diamante) 13 epandrium and cerci, posterior view 14 same, lateral view 15 internal structures of male terminalia (aedeagus [shaded], phallapodeme, gonite, hypandrium), ventral view 16 same, lateral view. Scale bar = 0.1 mm.

Figure 17.Distribution of Hydrochasma digitatum sp. n.

Figures 18–20.Hydrochasma faciale (Williston) (St. Vincent. St. Patrick: Cumberland Bay) 18 head, anterior view 19 same, lateral view 20 same, oblique view. Scale bar = 0.1 mm.

Figures 21–24.Hydrochasma faciale (Williston) (Dominica: Layou R.) 21 epandrium and cerci, posterior view 22 same, lateral view 23 internal structures of male terminalia (aedeagus [shaded], phallapodeme, gonite, hypandrium), ventral view 24 same, lateral view. Scale bar = 0.1 mm.